Gastritis
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þ Phlegmonous Gastritis
 - Strep, Staph, Proteus and E. coli can all cause a rare form of gastritis
   called the acute phlegmonous type.  This is a potentially life-threatening
   infection in which the gastric wall is heavily infiltrated, and may become
   necrotic.  The patient may become septic.  Immunocompromised patients are
   at particularly increased risk for this process. [Parillo S, Cooper MA
   (ed): "Gastritis" in Emedicine by Plantz and Adler (eds.)
   http://www.emedicine.com/emerg/topic212.htm]